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Collective resonances in hybrid photonic-plasmonic nanostructures / A. E. Ershov [et al.] // International Conference on Metamaterials and Nanophotonics (METANANO 2019). - St. Petersburg, 2019

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Доп.точки доступа:
Ershov, A. E.; Ершов, Александр Андреевич; Bikbaev, R. G.; Бикбаев, Рашид Гельмединович; Rasskazov, I. L.; Рассказов, Илья Леонидович; Gerasimov, V. S.; Герасимов, Валерий Сергеевич; Timofeev, I. V.; Тимофеев, Иван Владимирович; Polyutov, S. P.; Karpov, S. V.; Карпов, Сергей Васильевич; International Conference on Metamaterials and Nanophotonics(4 ; 2019 ; July ; 15-19 ; Saint Peresburg); Санкт-Петербургский национальный исследовательский университет информационных технологий, механики и оптики
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Collective lattice resonances in all-dielectric nanostructures under oblique incidence / A. D. Utyushev, V. I. Zakomirnyi, A. E. Ershov [et al.] // Photonics. - 2020. - Vol. 7, Is. 2. - Ст. 24, DOI 10.3390/PHOTONICS7020024. - Cited References: 70. - This research was funded by the RF Ministry of Science and Higher Education, the State contract with Siberian Federal University for scientific research and Russian Science Foundation project 19-72-00066 (investigation of finite size effects) . - ISSN 2304-6732
Кл.слова (ненормированные):
Collective lattice resonance -- Nanoparticle -- All-dielectric nanophotonics -- Mie resonance
Аннотация: Collective lattice resonances (CLRs) emerging under oblique incidence in 2D finite-size arrays of Si nanospheres have been studied with the coupled dipole model. We show that hybridization between the Mie resonances localized on a single nanoparticle and angle-dependent grating Wood-Rayleigh anomalies allows for the efficient tuning of CLRs across the visible spectrum. Complex nature of CLRs in arrays of dielectric particles with both electric dipole (ED) and magnetic dipole (MD) resonances paves a way for a selective and flexible tuning of either ED or MD CLR by an appropriate variation of the angle of incidence. The importance of the finite-size effects, which are especially pronounced for CLRs emerging for high diffraction orders under an oblique incidence has been also discussed.

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Держатели документа:
Department of Engineering Physics and Radioelectronics, Siberian Federal University, Krasnoyarsk, 660041, Russian Federation
Department of Space Materials and Technology, Siberian State University of Science and Technology, Krasnoyarsk, 660014, Russian Federation
Institute of Computational Modeling SB RAS, Krasnoyarsk, 660036, Russian Federation
L. V. Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk, 660036, Russian Federation
The Institute of Optics, University of Rochester, Rochester, NY 14627, United States

Доп.точки доступа:
Utyushev, A. D.; Zakomirnyi, V. I.; Ershov, A. E.; Gerasimov, V. S.; Karpov, S. V.; Карпов, Сергей Васильевич; Rasskazov, I. L.
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Collective lattice resonances in arrays of dielectric nanoparticles: a matter of size / V. I. Zakomirnyi [et al.] // Opt. Lett. - 2019. - Vol. 44, Is. 23. - P. 5743-5746, DOI 10.1364/OL.44.005743. - Cited References: 66. - Russian Science Foundation (19-72-00066). . - ISSN 0146-9592. - ISSN 1539-4794
Аннотация: Collective lattice resonances (CLRs) in finite-sized 2D arrays of dielectric nanospheres have been studied via the coupled dipole approximation. We show that even for sufficiently large arrays, up to 100×100 nanoparticles (NPs), electric or magnetic dipole CLRs may differ significantly from the ones calculated for infinite arrays with the same NP sizes and interparticle distances. The discrepancy is explained by the existence of a sufficiently strong cross-interaction between electric and magnetic dipoles induced at NPs in finite-sized lattices, which is ignored for infinite arrays. We support this claim numerically and propose an analytic model to estimate a spectral width of CLRs for finite-sized arrays. Given that most of the current theoretical and numerical researches on collective effects in arrays of dielectric NPs rely on modeling infinite structures, the reported findings may contribute to thoughtful and optimal design of inherently finite-sized photonic devices.

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Держатели документа:
Department of Theoretical Chemistry and Biology, School of Engineering Sciences in Chemistry, Biotechnology and Health, Royal Institute of Technology, Stockholm SE-10691, Sweden
Federal Siberian Research Clinical Centre under FMBA of Russia, Krasnoyarsk 660037, Russia
Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk 660036, Russia
Institute of Computational Modeling SB RAS, Krasnoyarsk 660036, Russia
Siberian Federal University, Krasnoyarsk 660041, Russia
Siberian State University of Science and Technology, Krasnoyarsk 660014, Russia
The Institute of Optics, University of Rochester, Rochester, New York 14627, USA

Доп.точки доступа:
Zakomirnyi, V. I.; Закомирный, Вадим Игоревич; Ershov, A. E.; Ершов, Александр Евгеньевич; Gerasimov, V. S.; Герасимов, Валерий Сергеевич; Karpov, S. V.; Карпов, Сергей Васильевич; Ågren, H.; Rasskazov, I. L.
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Collective resonances in hybrid photonic-plasmonic nanostructures / A. E. Ershov, R. G. Bikbaev, I. L. Rasskazov [et al.] // J. Phys.: Conf. Ser. - 2020. - Vol. 1461, Is. 1. - Ст. 012046DOI 10.1088/1742-6596/1461/1/012046. - Cited References: 11. - The reported study was funded by Russian Foundation for Basic Research, Government of Krasnoyarsk Territory, Krasnoyarsk Regional Fund of Science (Grant No. 18-42-240013); A.E. thanks the grant of the President of Russian Federation (agreement 075-15-2019-676)
Кл.слова (ненормированные):
Hybrid systems -- Plasmonics -- Time domain analysis -- 1-D photonic crystal -- Defect layers -- Nanodisks -- Periodic arrays -- Plasmonic nanostructures -- Rayleigh anomalies -- Spectral position -- Theoretical modeling -- Finite difference time domain method
Аннотация: We present the theoretical model to predict the spectral position of Rayleigh anomalies emerged in hybrid system consisting of periodic array of plasmonic nanodisks embeded into the middle of defect layer of 1D photonic crystal (PhC). The spectral positions of these new emerged Rayleigh anomalies agree well with the results of exact simulations with Finite-Difference Time-Domain (FDTD) method.

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Держатели документа:
Institute of Computational Modeling SB RAS, Krasnoyarsk, 660036, Russian Federation
Siberian Federal University, Krasnoyarsk, 660041, Russian Federation
Siberian State University of Science and Technology, Krasnoyarsk, 660014, Russian Federation
Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk, 660036, Russian Federation
Institute of Optics, University of Rochester, Rochester, NY 14627, United States

Доп.точки доступа:
Ershov, A. E.; Bikbaev, R. G.; Бикбаев, Рашид Гельмединович; Rasskazov, I. L.; Gerasimov, V. S.; Timofeev, I. V.; Тимофеев, Иван Владимирович; Polyutov, S. P.; Karpov, S. V.; Карпов, Сергей Васильевич; International Conference on Metamaterials and Nanophotonics(4th ; 15 - 19 July 2019 ; St. Petersburg, Russian Federation)
}
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Effect of local environment in resonant domains of polydisperse plasmonic nanoparticle aggregates on optodynamic processes in pulsed laser fields / A. E. Ershov [et al.] // Chin. Phys. B. - 2015. - Vol. 24, Is. 4. - Ст. 047804, DOI 10.1088/1674-1056/24/4/047804. - Cited References:25. - Project supported by the Russian Academy of Sciences (Grant Nos. 24.29, 24.31, III.9.5, 43, SB RAS-SFU (101), and 3-9-5). . - ISSN 1674. - ISSN 1741-4199. -

РУБ Physics, Multidisciplinary
Рубрики:
METAL NANOPARTICLES
GOLD NANOPARTICLES
OPTICAL-PROPERTIES
Кл.слова (ненормированные):
nanoparticle -- surface plasmon -- colloid aggregate -- optodynamics
Аннотация: Interactions of pulsed laser radiation with resonance domains of multiparticle colloidal aggregates having an increasingly complex local environment are studied via an optodynamic model. The model is applied to the simplest configurations, such as single particles, dimers, and trimers consisting of mono- and polydisperse Ag nanoparticles. We analyze how the local environment and the associated local field enhancement by surrounding particles affect the optodynamic processes in domains, including their photomodification and optical properties.

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Держатели документа:
Russian Acad Sci, LV Kirensky Inst Phys, Krasnoyarsk 660036, Russia
Russian Acad Sci, Inst Computat Modeling, Krasnoyarsk 660036, Russia
Siberian State Aerosp Univ, Krasnoyarsk 660014, Russia
Siberian Fed Univ, Krasnoyarsk 660028, Russia

Доп.точки доступа:
Ershov, A. E.; Ершов, Александр Евгеньевич; Gavrilyuk, A. P.; Karpov, S. V.; Карпов, Сергей Васильевич; Semina, P. N.; Семина, Полина Николаевна; Russian Academy of Sciences [24.29, 24.31, III.9.5, 43, SB RAS-SFU (101), 3-9-5]
}
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Effect of the surface shape of a large space body on its fragmentation in a planetary atmosphere / D. E. Khrennikov, A. K. Titov, A. E. Ershov [et al.] // Mon. Not. Roy. Astron. Soc. - 2020. - Vol. 493, Is. 1. - P. 1352-1360, DOI 10.1093/mnras/staa330. - Cited References: 38 . - ISSN 0035-8711. - ISSN 1365-2966

РУБ Astronomy & Astrophysics
Рубрики:
LARGE METEOROIDS
Кл.слова (ненормированные):
meteorites, meteors, meteoroids -- minor planets, asteroids: general
Аннотация: Employing the finite element and computational fluid dynamics methods, we have determined the conditions for the fragmentation of space bodies or preservation of their integrity when they penetrate into the Earth's atmosphere. The origin of forces contributing to the fragmentation of space iron bodies during the passage through the dense layers of the planetary atmosphere has been studied. It was shown that the irregular shape of the surface can produce transverse aerodynamic forces capable of causing deformation stress in the body exceeding the tensile strength threshold of iron.

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Держатели документа:
Siberian Fed Univ, Svobodny Av 79-10, Krasnoayrsk 660041, Russia.
Moscow Inst Phys & Technol, Inst Sky Per 9, Dolgopnany 141700, Russia.
Inst Computat Modeling SB RAS, Akademgorodok 50-44, Krasnoyarsk 660036, Russia.
Fed Res Ctr KSC SB RAS, LV Kirensky Inst Phys, Akademgorodok 50-38, Krasnoyarsk 660036, Russia.
PN Lebedev Phys Inst, Leninsky Prosp 53, Moscow 119991, Russia.
Siberian State Univ Sci & Technol, Krasnoyarsky Rabochy Av 31, Krasnoyarsk 660014, Russia.

Доп.точки доступа:
Khrennikov, D. E.; Titov, A. K.; Ershov, A. E.; Ершов, Александр Евгеньевич; Klyuchantsev, A. B.; Pariev, V. I.; Karpov, S. V.; Карпов, Сергей Васильевич
}
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Effects of size polydispersity on the extinction spectra of colloidal nanoparticle aggregates / A. E. Ershov [et al.] // Phys. Rev. B. - 2012. - Vol. 85, Is. 4. - Ст. 045421. - P. , DOI 10.1103/PhysRevB.85.045421. - Cited References: 41. - This work was supported by grants from the following foundations of the Russian Federation: Presidium of RAS, OFN RAS, and SB RAS. . - ISSN 1098-0121

РУБ Physics, Condensed Matter
Рубрики:
METAL FRACTAL CLUSTERS
   OPTICAL-PROPERTIES
   ABSORPTION
   NONLINEARITIES
   COMPOSITES
   SCATTERING
   PARTICLES
   SPHERES
   GRAINS
Аннотация: We investigate the effect of particle polydispersity on the optical extinction spectra of colloidal aggregates of spherical metallic (silver) nanoparticles, taking into account the realistic interparticle gaps caused by layers of stabilizing polymer adsorbed on the metal surface (adlayers). The spectra of computer-generated aggregates are computed using two different methods. The coupled-multipole method is used in the quasistatic approximation and the coupled-dipole method beyond the quasistatics. The latter approach is applicable if the interparticle gaps are sufficiently wide relative to the particle radii. Simulations are performed for two different particle size distribution functions (bimodal and Gaussian), varying the number of particles per aggregate, and different distribution functions of the interparticle gap width. The strong influence of the latter factor on the spectra is demonstrated and investigated in detail.

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Держатели документа:
[Ershov, Alexander E.
Isaev, Ivan L.
Semina, Polina N.
Karpov, Sergei V.] Russian Acad Sci, LV Kirensky Phys Inst, Krasnoyarsk 660036, Russia
[Ershov, Alexander E.
Karpov, Sergei V.] Siberian Fed Univ, Krasnoyarsk 660041, Russia
[Markel, Vadim A.] Univ Penn, Dept Bioengn, Dept Radiol, Philadelphia, PA 19104 USA
[Markel, Vadim A.] Univ Penn, Grad Grp Appl Math & Computat Sci, Philadelphia, PA 19104 USA

Доп.точки доступа:
Ershov, A. E.; Ершов, Александр Евгеньевич; Isaev, I. L.; Исаев, Иван Леонидович; Semina, P. N.; Семина, Полина Николаевна; Markel, V. A.; Karpov, S. V.; Карпов, Сергей Васильевич
}
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    Engineering mode hybridization in regular arrays of plasmonic nanoparticles embedded in 1D photonic crystal / V. S. Gerasimov [et al.] // J. Quant. Spectrosc. Radiat. Transf. - 2019. - Vol. 224. - P. 303-308, DOI 10.1016/j.jqsrt.2018.11.028. - Cited References: 49. - The reported study was funded by Russian Foundation for Basic Research, Government of Krasnoyarsk Territory, Krasnoyarsk Regional Fund of Science (Grant No.18-42-240013); by the RF Ministry of Science and Higher Education, the State contract with Siberian Federal University for scientific research in 2017–2019 (Grant No.3.8896.2017); by the Russian Science Foundation (Project No. 18-13-00363 ) (numerical calculations of Rayleigh anomalies in planar structures and corresponding research). . - ISSN 0022-4073
   Перевод заглавия: Управляемая гибридизация мод двумерной решетки внедренной в одномерный фотонный кристалл
Кл.слова (ненормированные):
Surface lattice resonance -- Photonic crystal -- Optical cavity
Аннотация: We analytically and numerically study coupling mechanisms between 1D photonic crystal (PhC) and 2D array of plasmonic nanoparticles (NPs) embedded in its defect layer. We introduce general formalism to explain and predict the emergence of PhC-mediated Wood–Rayleigh anomalies, which spectral positions agree well with the results of exact simulations with Finite-Difference Time-Domain (FDTD) method. Electromagnetic coupling between localized surface plasmon resonance (LSPR) and PhC-mediated Wood–Rayleigh anomalies makes it possible to efficiently tailor PhC modes. The understanding of coupling mechanisms in such hybrid system paves a way for optimal design of sensors, light absorbers, modulators and other types of modern photonic devices with controllable optical properties.

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Держатели документа:
Institute of Computational Modeling SB RAS, Krasnoyarsk, 660036, Russian Federation
Institute of Nanotechnology, Spectroscopy and Quantum Chemistry, Siberian Federal University, Krasnoyarsk, 660041, Russian Federation
Federal Siberian Research Clinical Centre under FMBA of Russia, Krasnoyarsk, 660037, Russian Federation
Polytechnic Institute, Siberian Federal University, Krasnoyarsk, 660041, Russian Federation
The Institute of Optics, University of Rochester, Rochester, NY 14627, United States
Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk, 660036, Russian Federation
Siberian State University of Science and Technology, Krasnoyarsk, 660014, Russian Federation

Доп.точки доступа:
Gerasimov, V. S.; Герасимов, Валерий Сергеевич; Ershov, A. E.; Ершов, Александр Евгеньевич; Bikbaev, R. G.; Rasskazov, I. L.; Timofeev, I. V.; Тимофеев, Иван Владимирович; Polyutov, S. P.; Karpov, S. V.; Карпов, Сергей Васильевич
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Engineering novel tunable optical high-Q nanoparticle array filters for a wide range of wavelengths / A. D. Utyushev, I. L. Isaev, V. S. Gerasimov [et al.] // Opt. Express. - 2020. - Vol. 28, Is. 2. - P. 1426-1438, DOI 10.1364/OE.28.001426. - Cited References: 62. - The reported study was funded by the Russian Science Foundation, project No. 18-13-00363; the grant of the President of Russian Federation for young scientists No. 075-15-2019-676 (calculations of the electromagnetic field configurations in NPs array) . - ISSN 1094-4087
Рубрики:
Nanophotonics, Metamaterials, and Photonic Crystals
Аннотация: The interaction of non-monochromatic radiation with arrays comprising plasmonic and dielectric nanoparticles has been studied using the finite-difference time-domain electrodynamics method. It is shown that LiNbO3, TiO2, GaAs, Si, and Ge all-dielectric nanoparticle arrays can provide a complete selective reflection of an incident plane wave within a narrow spectral line of collective lattice resonance with a Q-factor of 103 or larger at various spectral ranges, while plasmonic refractory TiN and chemically stable Au nanoparticle arrays provide high-Q resonances with moderate reflectivity. Arrays with fixed dimensional parameters make it possible to fine-tune the position of a selected resonant spectral line by tilting the array relative to the direction of the incident radiation. These effects provide grounds for engineering novel selective tunable optical high-Q filters in a wide range of wavelengths, from visible to middle-IR.

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Держатели документа:
Siberian Federal University, Krasnoyarsk 660041, Russia
Siberian State University of Science and Technology, 660014 Krasnoyarsk, Russia
Institute of Computational Modeling, Federal Research Center KSC SB RAS, 660036 Krasnoyarsk, Russia
Federal Siberian Research Clinical Center under FMBA of Russia, Krasnoyarsk 660037, Russia
Division of Theoretical Chemistry and Biology, Royal Institute of Technology, SE-100 44 Stockholm, Sweden
Kirensky Institute of Physics, Federal Research Center KSC SB RAS, 660036 Krasnoyarsk, Russia
The Institute of Optics, University of Rochester, Rochester, NY 14627, USA

Доп.точки доступа:
Utyushev, A. D.; Isaev, I. L.; Gerasimov, V. S.; Ershov, A. E.; Zakomirnyi, V. I.; Закомирный, Вадим Игоревич; Rasskazov, I. L.; Polyutov, S. P.; Полютов, Сергей Петрович; Ågren, H.; Karpov, S. V.; Карпов, Сергей Васильевич
}
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10.

Infrared absorption investigation of the role of octahedral groups upon the phase transition in the Rb2KMoO3F3 crystal / Y. V. Gerasimova [et al.] // Phys. Solid State. - 2013. - Vol. 55, Is. 11. - P. 2331-2334, DOI 10.1134/S1063783413110097. - Cited References: 10. - This study was supported by the Russian Foundation for Basic Research (project no. 12-02-31205_mol_a), the Ministry of Education and Science of the Russian Federation within the framework of the Russian Federal Target Program "Scientific and Scientific-Pedagogical Human Resources for the Innovative Russia" (agreement no. 8379), and the Interdisciplinary Integration Project of the Siberian Branch of the Russian Academy of Science No. 28. . - ISSN 1063-7834

РУБ Physics, Condensed Matter

Аннотация: The infrared absorption spectra of the oxyfluoride Rb2KMoO3F3 have been measured in the frequency range corresponding to stretching vibrations of the Mo-O anion octahedron with the purpose of clarifying their role in the phase transition. A semi-empirical calculation of two possible configurations of quasioctahedral MoO3F3 groups has been performed. The results of the investigations have demonstrated that some octahedra in the crystal structure change the local symmetry from C (3v) to C (2v) due to the phase transition (T = 197 K).

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Публикация на русском языке Изучение роли октаэдрических групп при фазовом переходе в кристалле Rb2KMoO3F3 методом инфракрасного поглощения // Физика твердого тела. - 2013. - Т. 55, Вып. 11. - С. 2215-2217

Держатели документа:
Russian Acad Sci, Siberian Branch, Kirensky Inst Phys, Krasnoyarsk 660036, Russia
Russian Acad Sci, Siberian Branch, Inst Geol & Mineral, Novosibirsk 630090, Russia

Доп.точки доступа:
Gerasimova, Y. V.; Герасимова, Юлия Валентиновна; Oreshonkov, A. S.; Орешонков, Александр Сергеевич; Vtyurin, A. N.; Втюрин, Александр Николаевич; Ivanenko, A. A.; Иваненко, Александр Анатольевич; Isaenko, L. I.; Ershov, A. E.; Ершов, Александр Евгеньевич; Pogoreltsev, E. I.; Погорельцев, Евгений Ильич; Russian Foundation for Basic Research [12-02-31205_mol_a]; Ministry of Education and Science of the Russian Federation [8379]; Interdisciplinary Integration Project of the Siberian Branch of the Russian Academy of Science [28]
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11.

    Infrared bound states in the continuum: random forest method / M. S. Molokeev, A. S. Kostyukov, A. E. Ershov [et al.] // Opt. Lett. - 2023. - Vol. 48, Is. 17. - P. 4460-4463, DOI 10.1364/OL.494629. - Cited References: 42. - Ministry of Science and Higher Education of the Russian Federation (FSRZ-2023-0006) . - ISSN 0146-9592. - ISSN 1539-4794
   Перевод заглавия: Инфракрасные связанные состояния в континууме: метод случайного леса
Кл.слова (ненормированные):
Field enhancement -- Infrared radiation -- Neural networks -- Refractive index -- Second harmonic generation -- Subwavelength gratings
Аннотация: In this Letter, we consider optical bound states in the continuum (BICs) in the infrared range supported by an all-dielectric metasurface in the form of subwavelength dielectric grating. We apply the random forest machine learning method to predict the frequency of the BICs as dependent on the optical and geometric parameters of the metasurface. It is found that the machine learning approach outperforms the standard least square method at the size of the dataset of ≈4000 specimens. It is shown that the random forest approach can be applied for predicting the subband in the infrared spectrum into which the BIC falls. The important feature parameters that affect the BIC wavelength are identified.

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Держатели документа:
IRC SQC, Siberian Federal University, Krasnoyarsk, 660041, Russia
Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk, 660036, Russia
Laboratory of Theory and Optimization of Chemical and Technological Processes, University of Tyumen, Tyumen, 625003, Russia
Institute of Computational Modelling SB RAS, Krasnoyarsk, 660036, Russia

Доп.точки доступа:
Molokeev, M. S.; Молокеев, Максим Сергеевич; Kostyukov, A. S.; Ershov, A. E.; Maksimov, D. N.; Максимов, Дмитрий Николаевич; Gerasimov, V. S.; Polyutov, S. P.
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12.

    Medium dependent optical response in ultra-fine plasmonic nanoparticles / L. K. Sorensen, D. E. Khrennikov, V. S. Gerasimov [et al.] // Phys. Chem. Chem. Phys. - 2022. - Vol. 24, Is. 39. - P. 24062-24075, DOI 10.1039/d2cp02929d. - Cited References: 52. - DEK, VSG, SVK acknowledge the support of the Russian Science Foundation (project no. 18-13-00363). L. K. S. acknowledges the support of Carl Tryggers Stiftelse, project CTS 18-441. We also acknowledge the Swedish National Infrastructure for Computing (SNIC) at the High Performance Computing Center North (HPC2N) partially funded by the Swedish Research Council through grant agreement no. 2021/3-22 . - ISSN 1463-9084
   Перевод заглавия: Зависимость оптического отклика сверхмалых плазмонных наночастиц от окружающей среды
Аннотация: We study the influence of media on the interaction of ultra-fine plasmonic nanoparticles (≤ 8 nm) with radiation. The important role of the surface layer of the nanoparticles, with properties that differ from the ones in the inner part, is established. Using an atomistic representation of the nanoparticle material and its interaction with light, we find a highly inhomogeneous distribution of the electric field inside and around the particles. It is predicted that with an increase in the refractive index of the ambient medium, the extension of the surface layer of atoms increases, something that also is accompanied by an enhanced red shift of the plasmon resonance band compared to large particles in which the influence of this layer and its relative volume is reduced. It is shown that the physical origin for the formation of a surface layer of atoms near the nanoparticle boundary is related to the anisotropy of the local environment of atoms in this layer which changes the conditions for the interaction of neighboring atoms with each other and with the incident radiation. It is shown that a growth of the refractive index of the ambient medium results in an increase in the local field in the dielectric cavity in which a plasmonic nanoparticle is embedded and which is accompanied by a growth of the amplitude of the plasmon resonance. We predict that in the ultra-fine regime the refractive index sensitivity shows a decreasing trend with respect to size which is opposite to that for larger particles. With the applied atomistic model this work demonstrates close relations between field distributions and properties of ultra-fine nanoparticles.

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Держатели документа:
Department of Physics and Astronomy, Uppsala University, Box 516, SE-751 20 Uppsala, Sweden. lasse.kragh.soerensen@gmail.com
Department of Theoretical Chemistry and Biology, School of Engineering Sciences in Chemistry, Biotechnology and Health, Royal Institute of Technology, Stockholm, SE-10691, Sweden
University Library, University of Southern Denmark, DK-5230 Odense M, Denmark
International Research Center of Spectroscopy and Quantum Chemistry, Siberian Federal University, Krasnoyarsk, 660041, Russian Federation
Institute of Computational Modelling, Federal Research Center KSC SB RAS, Krasnoyarsk, 660036, Russian Federation
Federal Siberian Research Clinical Centre under FMBA of Russia, 660037, Kolomenskaya, 26 Krasnoyarsk, Russia
L. V. Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk, 660036, Russian Federation

Доп.точки доступа:
Sorensen, L. K.; Khrennikov, D. E.; Gerasimov, V. S.; Ershov, A. E.; Polyutov, S. P.; Karpov, S. V.; Карпов, Сергей Васильевич; Agren, H.
}
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13.

Mode coupling in arrays of Al nanoparticles / A. E. Ershov, V. S. Gerasimov, R. G. Bikbaev [et al.] // J. Quant. Spectrosc. Radiat. Transf. - 2020. - Vol. 248. - Ст. 106961, DOI 10.1016/j.jqsrt.2020.106961. - Cited References: 81. - The reported study was funded by the grant of the President of Russian Federation (agreement 075-15-2019-676 ); the Russian Foundation for Basic Research, Government of Krasnoyarsk Territory, Krasnoyarsk Regional Fund of Science (Grant No.18-42-240013); the State contract with Siberian Federal University for scientific research; Russian Science Foundation project number 19-72-00066 (investigation of finite size effects) . - ISSN 0022-4073
Кл.слова (ненормированные):
Plasmonics -- Aluminum -- Surface lattice resonances
Аннотация: The mechanisms of coupling between the lattice modes of a two-dimensional (2D) array consisting of Al nanoparticles and the localized modes of individual Al nanoparticles have been studied in detail. The results were obtained employing the finite-difference time-domain method (FDTD) and the generalized Mie theory. It was shown that interactions of single particles with 2D lattice modes significantly change the extinction spectra depending on the particle radius and the lattice period. The Rayleigh anomalies of higher orders contribute to formation of hybrid modes resulting in increase of the extinction efficiency in short wavelength range of the spectrum. It was shown that high intensity magnetic modes are excited in aluminum nanoparticles arrays. The patterns of spatial electromagnetic field distribution at the frequencies of hybrid modes have been studied. We note that comprehensive understanding the mode coupling mechanisms in arrays paves the way for engineering different types of modern photonic devices with controllable optical properties.

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Держатели документа:
Institute of Computational Modeling SB RAS, Krasnoyarsk, 660036, Russian Federation
Siberian Federal University, Krasnoyarsk, 660041, Russian Federation
L.V. Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk, 660036, Russian Federation
Siberian State University of Science and Technology, Krasnoyarsk, 660014, Russian Federation

Доп.точки доступа:
Ershov, A. E.; Gerasimov, V. S.; Bikbaev, R. G.; Бикбаев, Рашид Гельмединович; Polyutov, S. P.; Karpov, S. V.; Карпов, Сергей Васильевич
}
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14.

Mode coupling in arrays of Al nanoparticles [Preprint] / A. E. Ershov, V. S. Gerasimov, R. G. Bikbaev [et al.]. - Electronic text data // ArXiv. - 2020. - Ст. 1912.12830. - Cited References: 78. - The reported study was funded by the Russian Foundation for Basic Research, Government of Krasnoyarsk Territory, Krasnoyarsk Regional Fund of Science (Grant No.18-42-240013); A.E. thanks the grant of the President of Russian Federation (agreement 075-15-2019-676)
Кл.слова (ненормированные):
plasmonics -- aluminum -- surface lattice resonances
Аннотация: The mechanisms of coupling between the lattice modes of a two-dimensional (2D) array consisting of Al nanoparticles and the localized modes of individual Al nanoparticles have been studied in detail. The results have been obtained employing the finite time difference method (FDTD) and the generalized Mie theory. It was shown that interactions of single particles with 2D lattice modes significantly change the extinction spectra depending on the particle radius and the lattice period. The Rayleigh anomalies of higher orders contribute to formation of hybrid modes resulting in increase of the extinction efficiency in short wavelength range of the spectrum. The patterns of spatial electromagnetic field distribution at the frequencies of hybrid modes have been studied. We note that comprehensive understanding the mode coupling mechanisms in arrays paves the way for engineering different types of modern photonic devices with controllable optical properties.

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Держатели документа:
Institute of Computational Modeling SB RAS, Krasnoyarsk 660036, Russia
Siberian Federal University, Krasnoyarsk, 660041, Russia
L.V. Kirensky Institute of Physics, Federal Research Center KSC SB RAS, 660036, Krasnoyarsk, Russia
Siberian State University of Science and Technology, 660014, Krasnoyarsk, Russia

Доп.точки доступа:
Ershov, A. E.; Gerasimov, V. S.; Bikbaev, R. G.; Бикбаев, Рашид Гельмединович; Polyutov, S. P.; Полютов, Сергей Петрович; Karpov, S. V.; Карпов, Сергей Васильевич
}
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15.

Multilayered gold nanoshells with ideal absorption for plasmonic photothermal therapy / V. I. Zakomirnyi [et al.] // The International Conference on Coherent and Nonlinear Optics; The Lasers, Applications, and Technologies ICONO/LAT 2016. - 2016. - Ст. IThL8. - P. 68-69
Аннотация: In this paper we study multilayered spherical nanoparticles with ideal absorption for biomedical applications. The core of such particles consists of Si, SiO2 or alternative plasmonic materials, such as zinc oxide doped with aluminum, gallium and indium tin oxide whereas the outer shell consists of gold. We develop the algorithm for finding optimal geometry of ideally absorbing Au nanoparticles taking into account the quantum size effect that in multilayered metallic nanoshells plays a significant role.

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Доп.точки доступа:
Zakomirnyi, V. I.; Rasskazov, I. L.; Рассказов, Илья Леонидович; Gerasimov, R.E.; Ershov, A. E.; Ершов, Александр Евгеньевич; Karpov, S. V.; Карпов, Сергей Васильевич; Polyutov, S. P.; International Conference on Coherent and Nonlinear Optics(2016 ; Sept. ; 26-30 ; Minsk, Belarus); International Conference on Lasers, Applications, and Technologies(2016 ; Sept. ; 26-30 ; Minsk, Belarus)
}
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16.

Multilayered gold nanoshells with ideal absorption for plasmonic photothermal therapy / V. I. Zakomirnyi [et al.] // Журнал прикладной спектроскопии. - 2016. - Т. 83, Вып. 6-16. - P. 177-178 . - ISSN 0514-7506
Аннотация: We study multilayered spherical nanoparticles with ideal absorption [1] for biomedical applications. The core of such particles consists of Si, SiO2 or alternative plasmonic materials [2], such as zinc oxide doped with aluminum, gallium and indium tin oxide whereas the outer shell consists of gold. We develop the algorithm for finding optimal geometry of ideally absorbing Au nanoparticles taking into account the quantum size effect that in multilayered metallic nanoshells plays a significant role.

РИНЦ

Доп.точки доступа:
Zakomirnyi, V .I.; Rasskazov, I. L.; Gerasimov, V. S.; Герасимов, Валерий Сергеевич; Ershov, A. E.; Ершов, Александр Евгеньевич; Karpov, S. V.; Карпов, Сергей Васильевич; Polyutov, S. P.; International Conference on Coherent and Nonlinear Optics(2016 ; Sept. ; 26-30 ; Minsk, Belarus); International Conference on Lasers, Applications, and Technologies(2016 ; Sept. ; 26-30 ; Minsk, Belarus)
}
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17.

    Nature of the anomalous size dependence of resonance red shifts in ultrafine plasmonic nanoparticles / L. K. Sorensen, D. E. Khrennikov, V. S. Gerasimov [et al.] // J. Phys. Chem. C. - 2022. - Vol. 126, Is. 39. - P. 16804-16814, DOI 10.1021/acs.jpcc.2c03738. - Cited References: 61. - D.K., V.G., A.E., S.P., and S.K. acknowledge the support by the Russian Science Foundation (project no. 18-13-00363). L.K.S acknowledges the support of Carl Tryggers Stifetelse, project CTS 18-441. The authors also acknowledge the Swedish National Infrastructure for Computing (SNIC) at the High Performance Computing Center North (HPC2N) partially funded by the Swedish Research Council through grant agreement no. 2020/3-29 . - ISSN 1932-7447
   Перевод заглавия: Природа аномальной размерной зависимости резонансных длинноволновых сдвигов в сверхмалых плазмонных наночастицах
Аннотация: Plasmonic red shifts of nanoparticles are commonly used in imaging technologies to probe the character of local environments, and the understanding of their dependence on size, shape, and surrounding media has therefore become an important target for research. The red shift of plasmon resonances changes character at about 8-10 nm of size for spherical gold nanoparticles above this value, the red shift progresses linearly with particle size, while below this size, the red shift changes nonlinearly and more strongly with size. Using an atomistic discrete interaction model, we have studied the special properties of the nanoparticle surface layers and discovered its importance for ultrafine plasmonic nanoparticles and their red shifts. We find that the physical origin for the specific properties inherent to the surface layer of atoms near the nanoparticle boundary is related to the anisotropy of the local environment of atoms in this layer by other atoms. The anisotropy changes the conditions for light-induced nonlocal interactions of neighboring atoms with each other and with the incident radiation compared to the atoms located in the particle core with isotropic nearest surroundings by other atoms. The local anisotropy of the nanoparticle crystal lattice is a geometric factor that increases toward its boundary and that is the most fundamental factor underlying the physical differences between the nanoparticle surface layer and the core material. It is shown that the inflexion point at 8-10 nm is due to a change in the dominant physical origin of the red shift from chaotization of atomically light-induced dipoles within the surface layer in the case of ultrafine nanoparticles to retardation effects for large nanoparticles in which the relative volume of the surface layer decreases rapidly to a negligible value with increasing nanoparticle size. The patterns revealed are the basis for predicting the manifestation of surface layer effects in ultrafine plasmonic nanoparticles of different shapes and composed of different plasmonic materials.

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Держатели документа:
Department of Physics and Astronomy, Uppsala University, Box 516, Uppsala, SE-751 20, Sweden
Department of Theoretical Chemistry and Biology, School of Engineering Sciences in Chemistry, Biotechnology and Health, Royal Institute of Technology, Stockholm, SE-10691, Sweden
University Library, University of Southern Denmark, Odense M, DK-5230, Denmark
International Research Center of Spectroscopy and Quantum Chemistry, Siberian Federal University, Krasnoyarsk, 660041, Russian Federation
Federal Research Center KSC SB RAS, Institute of Computational Modelling, Krasnoyarsk, 660036, Russian Federation
Federal Siberian Research Clinical Centre under FMBA of Russia, 26 Krasnoyarsk, Kolomenskaya660037, Russian Federation
Federal Research Center KSC SB RAS, L. V. Kirensky Institute of Physics, Krasnoyarsk, 660036, Russian Federation

Доп.точки доступа:
Sorensen, L. K.; Khrennikov, D. E.; Gerasimov, V. S.; Ershov, A. E.; Polyutov, S. P.; Karpov, S. V.; Карпов, Сергей Васильевич; Agren, H.
}
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18.

Bulgakov, E. N.
Optical coupled-mode theory for dielectric solids of revolution / E. N. Bulgakov, D. N. Maksimov, A. E. Ershov // Phys. Rev. A. - 2023. - Vol. 107, Is. 4. - Ст. 043506, DOI 10.1103/PhysRevA.107.043506. - Cited References: 33. - This work received financial support through Russian Science Foundation Grant No. 22-72-00102 . - ISSN 2469-9926. - ISSN 2469-9934
Аннотация: We propose a single resonance coupled-mode approach to light scattering by dielectric solids of revolution. By using a biorthogonal decomposition of the S matrix found with the extended boundary condition method we derived all parameters required for application of the temporal coupled-mode theory in a closed form. The proposed approach allows for constructing a frequency-dependent Fano response due to a single resonance after the full-wave solution has been found at a single incident frequency.

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Держатели документа:
Institute of Computational Modeling SB RAS, Krasnoyarsk 660036, Russia
Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk 660036, Russia
IRC SQC, Siberian Federal University, Krasnoyarsk 660041, Russia

Доп.точки доступа:
Maksimov, D. N.; Максимов, Дмитрий Николаевич; Ershov, A. E.; Булгаков, Евгений Николаевич
}
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19.

Optimization of photothermal methods for laser hyperthermia of malignant cells using bioconjugates of gold nanoparticles / V. S. Gerasimov [et al.] // Colloid J. - 2016. - Vol. 78, Is. 4. - P. 435-442, DOI 10.1134/S1061933X16040050. - Cited References: 33. - This work was supported by the Ministry of Education and Science of the Russian Federation (contract no. 14.607.21.0104 RFMEFI60714X0104) (Section 3) and the State Assignment of the Ministry of Education and Science of the Russian Federation for Siberian Federal University (contract no. 1792) (Section 2). The numerical calculations were performed using the MVS-1000 M cluster at the Institute of Computational Modeling, Siberian Branch, Russian Academy of Sciences. . - ISSN 1061-933X

РУБ Chemistry, Physical
Рубрики:
THERMAL THERAPY
   PLASMONIC NANOPARTICLES
   OPTICAL-PROPERTIES
   TUMOR-CELLS
   CARCINOMA
   CLUSTERS
   CANCER
Аннотация: Selective action of laser radiation on membranes of malignant cells has been studied in different regimes using conjugates of gold nanoparticles with oligonucleotides by the example of DNA aptamers. Under the conditions of a contact between a bioconjugate and a cell surface and the development of substantial and rapidly relaxing temperature gradients near a nanoparticle, the membranes of malignant cells alone are efficiently damaged due to the local hyperthermia of a cellular membrane. It has been shown that employment of pulsed instead of continuous wave laser radiation provides the localization of the damaging action, which does not involve healthy cells. © 2016, Pleiades Publishing, Ltd.

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Публикация на русском языке Оптимизация фототермических методов лазерной гипертермии злокачественных клеток с применением биоконъюгатов золотых наночастиц [Текст] / В. С. Герасимов [и др.] // Коллоид. журн. : Наука, 2016. - Т. 78 № 4. - С. 417–425

Держатели документа:
Siberian Federal University, Svobodnyi pr. 79, Krasnoyarsk, Russian Federation
Institute of Computational Modeling, Siberian Branch, Russian Academy of Sciences, Akademgorodok 50/44, Krasnoyarsk, Russian Federation
Kirenskii Institute of Physics, Siberian Branch, Russian Academy of Sciences, Akademgorodok 50/38, Krasnoyarsk, Russian Federation
Reshetnev State Siberian State Aerospace University, pr. Gazety “Krasnoyarskii rabochii” 31, Krasnoyarsk, Russian Federation

Доп.точки доступа:
Gerasimov, V. S.; Герасимов, Валерий Сергеевич; Ershov, A. E.; Ершов, Александр Евгеньевич; Karpov, S. V.; Карпов, Сергей Васильевич; Polyutov, S. P.; Semina, P. N.; Семина, Полина Николаевна
}
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20.

Optodynamic and photochrome effects in composite media with aggregates of plasmonic nanoparticles in pulsed laser fields / A. E. Ershov [et al.] // ICONO/LAT 2013 : Advance conference program. - 2013. - P.

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Доп.точки доступа:
Ershov, A. E.; Ершов, Александр Евгеньевич; Gavrilyuk, A. P.; Karpov, S. V.; Карпов, Сергей Васильевич; Semina, P. N.; Семина, Полина Николаевна; International Conference on Lasers, Applications, and Technologies (LAT 2013) (2013 ; June ; 18-22 ; Moscow)
}
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